DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 52 (Engine Control System (A25A-FXS) - Diagnostic Codes (P0128-P0171)) >> SFI System >> DTC P014C-00: O2 Sensor Slow Response - Rich to Lean Bank 1 Sensor 1; DTC P014D-00: O2 Sensor Slow Response - Lean to Rich Bank 1 Sensor 1; DTC P015A-00: O2 Sensor Delayed Response - Rich to Lean Bank 1 Sensor 1; DTC P015B-00: O2 Sensor Delayed Response - Lean to Rich Bank 1 Sensor 1 [10/2022 - 11/2023] >> Monitor Strategy

Monitor Strategy

WARNING: This page is about a different variant/trim than selected.
Related DTCs P014C: Air fuel ratio sensor (sensor 1) response rate (rich to lean response rate)
P014D: Air fuel ratio sensor (sensor 1) response rate (lean to rich response rate)
P015A: Air fuel ratio sensor (sensor 1) response rate (rich to lean delay)
P015B: Air fuel ratio sensor (sensor 1) response rate (lean to rich delay)
Required Sensors/Components (Main) Air fuel ratio sensor (sensor 1)
Required Sensors/Components (Related) Crankshaft position sensor
Frequency of Operation Once per driving cycle
Duration 10 to 15 seconds
MIL Operation 2 driving cycles
Sequence of Operation None
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